Keeping up with their hot bodies! The Kardashian-Jenner families have been enjoying a sun-filled family vacation in Phuket, Thailand, where they've tried out water activities -- and put their beach-ready bodies on display in skimpy swimwear. Click here to see more photos from their getaway.

On Sunday, March 30, Kendall Jenner enjoyed a paddleboarding session with big sister Khloe Kardashian. Both girls rocked cute swimsuits -- Khloe flaunting her amazing physique in a Stampd Los Angeles East Coast black swimsuit, and Kendall looking pretty in a pink ruched bandeau bikini top and printed bottoms. The 18-year-old model took the lead with the paddle, as she and Khloe sat on the board, treating it like a canoe.

The two have been spending quality time together, as evidenced in a tweet from Kendall on Tuesday, April 1. "My best friend, soulmate, and... just happens to be my sister," she wrote alongside the snapshot of herself with big sister Khloe.

Not to be forgotten, Kendall went snorkeling with little sister Kylie on Sunday, where the teen model even helped adjust the straps of her younger sister's teal bikini top.

Kendall went snorkeling with little sister Kylie on Sunday in Thaliand, where the teen model even helped adjust the straps of her younger sister's teal bikini top.Credit: MTRX/AKM-GSI

Kylie has been all about rocking her lean and petite frame, swapping swimsuits left and right while on vacation. On Saturday, March 29, the 16-year-old reality star changed into a white bandeau string bikini after her black high-waisted bikini bottoms and matching top got covered in sand.

Kylie Jenner has been all about rocking her lean and petite frame, swapping swimsuits left and right while on vacation in Thailand with the Kardashian family.Credit: MTRX/AKM-GSI